Use And Maintenance Strategies Of Medical Oxygen Generators

With the aging of the population and the increase in the number of hospital beds, the medical system has a growing demand for medical oxygen. The traditional oxygen cylinder oxygen supply mode can no longer meet the demand for efficient, safe and continuous oxygen supply. Medical oxygen production equipment based on PSA technology has rapidly become popular due to its flexibility, economy and safety, and has gradually replaced the centralized oxygen supply system.

1. Working principle of PSA oxygen generator
Pressure Swing Adsorption (PSA) is a mature technology for gas separation based on the different adsorption capacities of molecular sieves for oxygen and nitrogen at different pressures. Its core component is zeolite molecular sieve, which can efficiently and selectively adsorb nitrogen in the air at room temperature to obtain high-purity oxygen.

A standard PSA oxygen generator system mainly consists of an air compressor, a pre-filter, an air buffer tank, an adsorption tower, a sterilizing filter, an oxygen buffer tank, and a control system. In the Newtek system, the equipment is usually equipped with a double adsorption tower structure, which works alternately to achieve continuous oxygen supply, and uses an advanced microcomputer control system to achieve real-time monitoring of pressure, temperature, and purity.

After being compressed, deoiled, and dehydrated, the air enters the adsorption tower. The molecular sieve adsorbs impurities such as nitrogen, water vapor, and carbon dioxide, and the remaining oxygen is enriched and output to the oxygen supply system. Through regular pressure switching, the molecular sieve in the adsorption tower can automatically complete the regeneration process to achieve continuous and efficient oxygen production, and the oxygen concentration is stably maintained at 90%~94%.

 

2. Use and maintenance strategy of medical oxygen generator

2.1 How to use oxygen generator
Generally speaking, the medical oxygen generator system includes two devices, one main and one backup, which can switch the use mode according to the oxygen supply demand. Common use modes include automatic and manual modes. In NEWTEK's PSA equipment, its automatic control function can realize unattended operation. When encountering abnormalities, it will automatically alarm and switch to the backup equipment to ensure uninterrupted oxygen supply.

In order to extend the life of the equipment and maintain the purity of oxygen, the following operating specifications should be noted:

Confirm the voltage, current, oil level, and cooling system status before starting;

Avoid frequent start and stop of equipment;

Regularly check the working status of the filter system and valves;

Set reasonable operating time and switching cycle.

2.2 Maintenance focus of molecular sieve
Molecular sieve is the core consumable of PSA oxygen generation system, and its performance directly affects the oxygen generation efficiency and oxygen purity of the equipment. Common faults include decreased adsorption capacity and reduced oxygen generation concentration, which are mainly caused by factors such as moisture, oil ingress, and pollution of molecular sieve.

NEWTEK's molecular sieve system has the following technical advantages:

Use zeolite materials with high specific surface area (800~1000m²/g);

Use high sealing structure to prevent external water vapor intrusion;

Equipped with intelligent diagnostic system to monitor adsorption status in real time and give early warning.

Maintenance suggestions:

Check the molecular sieve adsorption tower every 6~12 months;

Replace the molecular sieve in time if the oxygen concentration does not meet the standard;

Keep the air purification system in normal operation to prevent oil and water impurities from entering the adsorption tower.

2.3 Maintenance of air compressor
The air compressor provides a stable air source for the oxygen production system, and generally uses a twin-screw compressor. Its operating status is directly related to the oxygen supply capacity of the entire system. Common faults include substandard pressure, abnormal fuel consumption, and high operating noise.

Maintenance strategies include:

Regularly replace lubricating oil and oil-gas separator;

Check whether the intake valve and solenoid valve are working properly;

Replace aging hoses and clogged filter elements;

NEWTEK equipment is equipped with an adaptive load management system that can effectively control the operating pressure of the compressor and improve operating efficiency.

2.4 Inspection and maintenance of the electronic control system
NEWTEK equipment widely uses intelligent PLC control modules to achieve remote monitoring and data transmission functions. Common electronic control system failures include sensor failure, control board failure, solenoid valve non-response, etc.

Maintenance suggestions:

Regularly check and calibrate pressure and oxygen concentration sensors;

Backup program settings to prevent data loss due to accidental power failure;

Check the connection status of the communication module and signal line.

 

3. Introduction to NEWTEK's technical advantages
NEWTEK is a high-tech enterprise focusing on the design and manufacture of industrial and medical gas systems. It has more than 20 years of rich experience in oxygen, nitrogen, argon, nitrous oxide, acetylene and carbon dioxide systems. It has installed more than 350 sets of gas generation equipment and whole plant systems worldwide.

Core product lines include:

PSA/VPSA oxygen and nitrogen production systems;

Cryogenic air separation unit (Cryogenic O₂/N₂/Ar);

Oxygen/nitrogen/argon reliquefaction equipment;

Medical nitrous oxide and carbon dioxide production systems;

Custom modular gas plants and filling stations;

Technical advantages:

Highly modular design, suitable for various hospitals and industrial scenarios;

Strong scalability, support customization and remote operation and maintenance;

Adopting German and American technical standards, key components are purchased globally;

Professional after-sales team provides full life cycle technical support.

NEWTEK has always adhered to the research and development concept of "smart, safe and efficient". Its deep accumulation and innovation capabilities in the field of medical gases have provided reliable oxygen supply guarantees for medical institutions around the world.

 

          

 

4. Future development trends and the driving role of NEWTEK's technological innovation
With the continuous growth of the global medical industry's demand for oxygen, the technological innovation of medical oxygen generators will develop in the direction of intelligence, green environmental protection and higher efficiency. Future oxygen generators not only require a stable oxygen supply, but also need to have functions such as intelligent monitoring, remote maintenance and energy efficiency optimization, which also provides new ideas for the long-term operation and maintenance of equipment.

4.1 Intelligent monitoring and remote management

With the widespread application of Internet of Things technology, medical oxygen generators will no longer rely solely on traditional manual inspection and maintenance. NEWTEK has taken the lead in introducing an intelligent monitoring system in its oxygen generators, which can track the operating status of the equipment, oxygen purity, system pressure and other core data in real time, and realize remote diagnosis and fault prediction through the cloud platform. Medical institutions can remotely grasp the operating status of the equipment through mobile phones or PCs, discover potential problems in time, reduce manual intervention, and warn of fault risks in advance, greatly improving the stability and management efficiency of the equipment.

4.2 Environmental protection and energy-saving design
With the continuous improvement of global environmental protection requirements, the energy-saving and environmental protection characteristics of medical oxygen generators have become increasingly important. NEWTEK continues to optimize its PSA oxygen production system, using efficient molecular sieve materials and low-energy compressor design to effectively reduce the energy consumption and emissions of the equipment. By introducing an intelligent adjustment system, the equipment can automatically adjust the workload according to actual usage needs to avoid over-operation, thereby achieving energy conservation and emission reduction.

4.3 Modularization and customization
Future medical oxygen production systems will tend to be more flexible and customized to meet the needs of hospitals and clinics of different sizes.NEWTEK has launched modular oxygen production equipment for this purpose. Through the combination of standardized modules, the system configuration can be flexibly adjusted according to the specific situation of the hospital, ensuring that while ensuring oxygen supply, the initial investment and subsequent maintenance costs are minimized. For large medical institutions, NEWTEK also provides whole-plant system solutions that can meet the needs of the entire process from oxygen production, storage to distribution.

 

5. Conclusion
Medical oxygen generators are important and indispensable equipment in modern hospitals. Reasonable use and scientific maintenance strategies are the prerequisites for ensuring patient safety and improving treatment efficiency. By introducing advanced equipment and management concepts from high-tech manufacturers such as NEWTEK , hospitals can not only effectively improve the reliability and sustainability of oxygen production, but also reduce maintenance costs and energy consumption. In the future, with the further development of the Internet of Things and artificial intelligence technologies, medical oxygen supply systems will evolve in a more intelligent and efficient direction.